As ABC sideline reporter Bonnie Bernstein ran across the Texas State Fairgrounds and a mile to her car after covering her first OU-Texas football game last year, she knew something was wrong. Her calf was cramping up, her thigh was hurting and she was having trouble breathing.
"For somebody who works out five days a week, that didn't seem quite right,” said Bernstein, 37, a former Maryland gymnast.
Bernstein was in a hurry to beat the game traffic and catch her flight out of Dallas. The pain got even worse after boarding the plane.
The following Monday, she visited her physical therapist because she thought she had pulled a muscle.
The next day, her knee was swollen, and her doctor deduced she might have a blood clot. A sonogram revealed the clot had extended from her Achilles, up her thigh and had broken off into both lungs.
"Once it breaks off and gets into the lungs, it's called a pulmonary embolism, which is life threatening,” she said.
"If I had waited another day or so, I might not be having this conversation.”
Bernstein suffers from Deep-Vein Thrombosis (DVT), which affects up to 2 million Americans a year.